Infra red diamond composites
AssigneeCornell Research Foundation, Inc.
InventorsRishi Raj, Albert J. Sievers, Liang Yue, Tae W. Noh
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Abstract
New composites useful for infrared transmitting applications comprise a dispersion of small particles of diamonds in a matrix having infrared transmission properties (from about 1 to at least 10 .mu.m wavelength) and refractive index substantially similar to that of diamond. The composites exhibit mechanical toughness and durability 2-4 times that of the similarly treated matrix alone without adverse effect on optical properties.
Claims10
An infrared transmitting composite which comprises finely divided diamond particles having a particle size of from about 0.01 to 5 micrometer diameter uniformly dispersed in a matrix that transmits infrared light wherein said diamond particles are present in the composite at a volume concentration of from about 0.1 to about 75 volume percent;
- wherein said matrix is selected from the group consisting of one or more of the following:
- zinc sulfide, zinc selenide, barium monosulfide, calcium sulfide, carbon fluoride, magnesium sulfide, cadmium telluride, gallium arsenide, thorium chloride, thorium iodide, thorium tetrafluoride, arsenic trisulfide and tin iodide and wherein said composite exhibits improved mechanical properties and toughness over that of the matrix alone.
A composite for infrared transmitting applications which comprises a dispersion of diamond particles in a matrix which transmits infrared light, said diamond particles, having a particle size from about 0.01 to 5.0 micrometer diameter, being uniformly dispersed in said matrix comprising an alloy of zinc sulfide and zinc selenide at a concentration of from about 1 to about 75 volume percent.
Dependencies are inferred from the claim text.